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AMC7585 Dataheets PDF



Part Number AMC7585
Manufacturers ADD Microtech
Logo ADD Microtech
Description 5A Low Dropout Regulator
Datasheet AMC7585 DatasheetAMC7585 Datasheet (PDF)

AMC DOC. #: AMC7585_E (LF) Feb 2005 ® ADD MICROTECH CORP. DESCRIPTION AMC7585 5A LOW DROPOUT REGULATOR FEATURES The AMC7585 is a high performance low dropout regulator rated for 5A output current with fixed 2.5V/3.3V/5.0V and adjustable output. It is designed for use in applications requiring low dropout characteristics over the rated current range. On chip trimming adjusts the reference voltage to 1%. These features are ideal for low voltage microprocessor applications requiring a regulated .

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AMC DOC. #: AMC7585_E (LF) Feb 2005 ® ADD MICROTECH CORP. DESCRIPTION AMC7585 5A LOW DROPOUT REGULATOR FEATURES The AMC7585 is a high performance low dropout regulator rated for 5A output current with fixed 2.5V/3.3V/5.0V and adjustable output. It is designed for use in applications requiring low dropout characteristics over the rated current range. On chip trimming adjusts the reference voltage to 1%. These features are ideal for low voltage microprocessor applications requiring a regulated 2.5V to 3.6V power supply. In addition, the AMC7585 provides the device protections including over current and thermal shutdown. Also, reverse battery protection scheme limits the reverse current when the input voltage falls below the output. Input-Output differential of typical 1.1V at 5A and low quiescent current Output current is excess of 5A Fast transient response Reverse battery protection Short circuit protection Internal thermal overload protection Available in 3L plastic TO-220 and surface mount 3L TO-263/252 packages Pin assignment identical to EZ1585B and LT1585A series. APPLICATIONS PACKAGE PIN OUT 3.VIN 2.VOUT 1.ADJ/GND 3.VIN 2.VOUT 1.ADJ/GND Pentium® Processor Supplies PowerPCTM Supplies Computer Add-On Cards Other Applications Requiring Low Dropout Voltage Over Rated Current. AMC7585-2.5 – 2.5V Fixed AMC7585-3.3 – 3.3V Fixed AMC7585-5.0 – 5.0V Fixed AMC7585-ADJ – Adjustable 3-Pin Plastic TO-220 (Top View) 3-Pin Plastic TO-252 Surface Mount (Top View) 3.VIN 2.VOUT 1.ADJ/GND 3.VIN 2.VOUT 1.ADJ 3-Pin Plastic TO-263 (ST) Surface Mount (Top View) ORDER INFORMATION TO-263 TO-263-3 ST3 3-pin 3-pin AMC7585-ADJST3 3-Pin Plastic TO-263-3 (ST3) Surface Mount (Top View) TA (OC) 0 to 70 0 to 70 0 to 70 0 to 70 T TO-220 3-pin ST SJ 3-pin TO-252 AMC7585-X.XT AMC7585-X.XTF(Lead Free) AMC7585-ADJT AMC7585-X.XST AMC7585-X.XSTF(Lead Free) AMC7585-ADJST AMC7585-X.XSJ AMC7585-X.XSJF(Lead Free) AMC7585-ADJSJ AMC7585-ADJTF(Lead Free) AMC7585-ADJSTF(Lead Free) AMC7585-ADJST3F(Lead Free) AMC7585-ADJSJF(Lead Free) Note: 1.All surface-mount packages are available in Tape & Reel. Append the letter “T” to part number (i.e., AMC7585-X.XSTT, AMC7585-X.XST3T, AMC7585-X.XSJT ). 2.The letter ”F” is marked for Lead Free process. 1 www.addmtek.com Copyright © 2002, ADD Microtech Corp. AMC DOC. #: AMC7585_E (LF) Feb 2005 AMC7585 5A LOW DROPOUT REGULATOR TYPICAL APPLICATION VIN ≥ 4V AMC7585 -X.X VOUT 2.5V/3.3V/5V C2 22µF C1 10µF AMC7585-X.X application schematic VIN AMC7585 ADJ ADJ *C1 10µF R1 1% R2 1% VOUT **C2 22µF VOUT = VREF (1+(R2/R1)) + IADJR2 * REQUIRED IF REGULATOR IS LOCATED FAR FROM POWER SUPPLY FILTER ** DESIGN C2 AS CLOSE TO VOUT PIN AS POSSIBLE AMC7585-ADJ application schematic Copyright © 2002, ADD Microtech Corp. 2 www.addmtek.com AMC DOC. #: AMC7585_E (LF) Feb 2005 AMC7585 5A LOW DROPOUT REGULATOR (Note) 7V 150 OC -65 OC to 150 OC 300 OC ABSOLUTE MAXIMUM RATINGS Input Voltage (VIN) Operating Junction temperature Storage Temperature Range Lead temperature (Soldering, 10 seconds) Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. POWER DISSIPATION TABLE TA=70 OC Derating factor ( mW/ OC ) TA ≤ 25 OC O TA ≥ 25 C Power rating(mW) Power rating(mW) 22.2 22.2 22.2 22.2 12.5 12.5 2775 2775 2775 2775 1562 1562 1776 1776 1776 1776 1000 1000 Package T TF ST/ST3 ST/ST3F SJ SJF θJA ( C /W ) O TA= 85 OC Power rating (mW) 1443 1443 1443 1443 812 812 45 45 45 45 80 80 Note: TJ = TA + (PD × θJA) PD: Power dissipation. θJA: Thermal resistance from Junction to Ambient. For T and ST/ST3 packages, θJT = 3.0 OC / W. For SJ package, θJT = 7.0 OC /W. TJ = TTAB + (PD × θJT) TTAB: Tab temperature. θJT: Thermal resistance from junction to tab of the package. 1. 2. 3. The θJA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow. If power consumption is over above rating, adequate heat sink is required to dissipate heat. RECOMMENDED OPERATING CONDITIONS Parameter Symbol Recommended Operating Conditions Min. Typ. Max. Input Voltage Load Current (with adequate heatsinking) Input Capacitor (VIN to GND) Output Capacitor with ESR of 10Ω max., (VOUT to GND) Operating Ambient Temperature Range Operating junction temperature TJ VIN IO 2.75 0.010 1 10 0 70 125 7 5 Units V A µF µF O C O C Copyright © 2002, ADD Microtech Corp. 3 www.addmtek.com AMC DOC. #: AMC7585_E (LF) Feb 2005 BLOCK DIAGRAM AMC7585 5A LOW DROPOUT REGULATOR VIN VOUT THERMAL LIMIT 1.25V VREF GND AMC7585-X.X circuit schematic VIN 1.25V VREF THERMAL LIMIT VOUT ADJ AMC7585-ADJ circuit schematic Copyright © 2002, ADD Microtech Corp. 4 www.addmtek.com AMC DOC. #: AMC7585_E (LF) Feb 2005 AMC7585 5A LOW DROPOUT REGULATOR ELECTRICAL CHARACTERISTICS Unless otherwise specified, VIN = VOUT + 2V, IO = 10mA. These specifications apply operating .


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